Seconded, Mark.
I've seen a boatload of old Smiffs used hard over the past 35 years and I never saw one consistently do that. I suspect bad frame machining, though trying a new hammer would be another approach.
Complete thread:
- I have hell..... - 
Scott Ambler, 
2014-05-14, 15:17 
- Is it centered..... - 
MR, 
2014-05-14, 16:32
- Seconded, Mark. - 
Sarge, 
2014-05-14, 17:03
- I have seen one other.  On this forum, actually, years ago - 
John K., 
2014-05-14, 18:28
- I have seen one other.  On this forum, actually, years ago - 
Slow Hand, 
2014-05-14, 19:20
- I have safe full of Rugers Scott.... - 
Bud, 
2014-05-14, 19:42
- Bud, I have a Safe full of Smiths & Have NEVER had one do - Rob Leahy, 2014-05-15, 16:26
 - Same here Bud... - rob, 2014-05-16, 21:13
 
 
 - I have safe full of Rugers Scott.... - 
Bud, 
2014-05-14, 19:42
 
 - I have seen one other.  On this forum, actually, years ago - 
Slow Hand, 
2014-05-14, 19:20
 
 - I have seen one other.  On this forum, actually, years ago - 
John K., 
2014-05-14, 18:28
 
 - Seconded, Mark. - 
Sarge, 
2014-05-14, 17:03
 - I have hell..... - Jared, 2014-05-14, 20:15
 - Have not experienced this problem yet... - Brian A, 2014-05-15, 13:17
 - Buy another hammer on Ebay. - 
cas, 
2014-05-15, 13:50
- Buy another hammer on Ebay. - 
Scott Ambler, 
2014-05-15, 14:09
- This is one reason I don't get worked up... - rob, 2014-05-16, 21:21
 
 
 - Buy another hammer on Ebay. - 
Scott Ambler, 
2014-05-15, 14:09
 - Scott, don't know if this helps but... - 
Hoot, 
2014-05-19, 06:31
- Scott, don't know if this helps but... - Scott Ambler, 2014-05-19, 13:55
 
 
 - Is it centered..... - 
MR, 
2014-05-14, 16:32